Optical Refractive Index Sensing Based on High-Q Bound States in the Continuum in Free-Space Coupled Photonic Crystal Slabs

被引：112

作者：

Liu, Yonghao ^{[1
]}

Zhou, Weidong ^{[1
]}

Sun, Yuze ^{[1
]}

机构：

[1] Univ Texas Arlington, Dept Elect Engn, Arlington, TX 76019 USA

来源：

SENSORS | 2017年 / 17卷 / 08期

基金：

美国国家科学基金会;

关键词：

optical sensor; Fano resonance; label-free sensor; photonic crystals; bound states in the continuum; FANO RESONANCE; QUALITY FACTOR; POLARIZATION; SENSITIVITY; BIOSENSORS; ENHANCEMENT; ABSORPTION; SENSOR; MODES;

D O I：

10.3390/s17081861

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

High sensitivity (S) and high quality factor (Q) are desirable to achieve low detection limit in label-free optical sensors. In this paper, we theoretically demonstrate that single-layer and coupled bi-layer photonic crystal slabs (PCS) possess simultaneously high S and high Q near the bound states in the continuum (BIC). We theoretically achieved S > 800 nm/RIU and Q > 10(7) in refractive index sensing in the 1400-1600 nm telecom optical wavelength bands. We experimentally demonstrated an S of 94 nm/RIU and a Q of 1.2 x 10(4), with a detection limit of 6 x 10(-5) refractive index unit. These sensor designs can find applications in biochemical sensing, environmental monitoring, and healthcare.

引用

页数：12

共 50 条

[21] Nanodiamond induced high-Q resonances in defect-free photonic crystal slabs
Tomljenovic-Hanic, Snjezana
Greentree, Andrew D.
Gibson, Brant C.
Karle, Timothy J.
Prawer, Steven
OPTICS EXPRESS, 2011, 19 (22): : 22219 - 22226
[22] Momentum space design of high-Q photonic crystal optical cavities
Srinivasan, K
Painter, O
OPTICS EXPRESS, 2002, 10 (15): : 670 - 684
[23] Ultrasensitive Refractive Index Sensing Based on Hybrid High-Q Metasurfaces
Qiu, Shuang
Zhang, Houjiao
Shi, Zhonghong
Li, Haoyang
Zhou, Zhang-Kai
JOURNAL OF PHYSICAL CHEMISTRY C, 2023, 127 (17): : 8263 - 8270
[24] High-Q cavities in photonic crystal slab heterostructures formed by variation in the refractive index
Tomijenovie-Hanic, Snjezana
de Sterke, C. Martijn
Steel, Michael J.
ICTON 2007: PROCEEDINGS OF THE 9TH INTERNATIONAL CONFERENCE ON TRANSPARENT OPTICAL NETWORKS, VOL 2, 2007, : 2 - +
[25] Design of simultaneous high-Q and high-sensitivity photonic crystal refractive index sensors
Yang, Daquan
Tian, Huiping
Ji, Yuefeng
Quan, Qimin
JOURNAL OF THE OPTICAL SOCIETY OF AMERICA B-OPTICAL PHYSICS, 2013, 30 (08) : 2027 - 2031
[26] Optical Force on Dielectric Nanorods Coupled to a High-Q Photonic Crystal Nanocavity
Jian, Y. C.
Xiao, J. J.
Huang, J. P.
JOURNAL OF PHYSICAL CHEMISTRY C, 2009, 113 (39): : 17170 - 17175
[27] Terahertz metasurfaces based on bound states in the continuum (BIC) for high-sensitivity refractive index sensing
Liu, Xinyan
Li, Fuyu
Li, Yuanxun
Tang, Tingting
Liao, Yulong
Lu, Yongcheng
Wen, Qiye
OPTIK, 2022, 261
[28] High-Q resonance in GeSn-based bound states in the continuum microcavity
Liu, Xinyi
Liu, Yan
Fang, Cizhe
Huang, Yan
Shao, Yao
Han, Genquan
Hao, Yue
APPLIED OPTICS, 2020, 59 (32) : 10093 - 10101
[29] Observation of optical k∼0 high-Q Fano resonances in macroscopic photonic crystal slabs
Shapira, Ofer
Lee, Jeongwon
Zhen, Bo
Chua, Song-Liang
Joannopoulos, John D.
Soljacic, Marin
2012 CONFERENCE ON LASERS AND ELECTRO-OPTICS (CLEO), 2012,
[30] Fiber Loop Ring-Down Refractive Index Sensor Based on High-Q Photonic Crystal Cavity
Zhao, Yong
Zhang, Ya-Nan
Wu, Di
Wang, Qi
2012 IEEE SENSORS PROCEEDINGS, 2012, : 1629 - 1632

← 1 2 3 4 5 →